Hal Drivers for L4
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stm32l4xx_hal_rcc.c File Reference
RCC HAL module driver. This file provides firmware functions to manage the following functionalities of the Reset and Clock Control (RCC) peripheral: + Initialization and de-initialization functions + Peripheral Control functions. More...
Go to the source code of this file.
Functions | |
static HAL_StatusTypeDef | RCC_SetFlashLatencyFromMSIRange (uint32_t msirange) |
Update number of Flash wait states in line with MSI range and current voltage range. | |
void | HAL_RCC_DeInit (void) |
Reset the RCC clock configuration to the default reset state. | |
HAL_StatusTypeDef | HAL_RCC_OscConfig (RCC_OscInitTypeDef *RCC_OscInitStruct) |
Initialize the RCC Oscillators according to the specified parameters in the RCC_OscInitTypeDef. | |
HAL_StatusTypeDef | HAL_RCC_ClockConfig (RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency) |
Initialize the CPU, AHB and APB busses clocks according to the specified parameters in the RCC_ClkInitStruct. | |
void | HAL_RCC_MCOConfig (uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv) |
Select the clock source to output on MCO pin(PA8). | |
uint32_t | HAL_RCC_GetSysClockFreq (void) |
Return the SYSCLK frequency. | |
uint32_t | HAL_RCC_GetHCLKFreq (void) |
Return the HCLK frequency. | |
uint32_t | HAL_RCC_GetPCLK1Freq (void) |
Return the PCLK1 frequency. | |
uint32_t | HAL_RCC_GetPCLK2Freq (void) |
Return the PCLK2 frequency. | |
void | HAL_RCC_GetOscConfig (RCC_OscInitTypeDef *RCC_OscInitStruct) |
Configure the RCC_OscInitStruct according to the internal RCC configuration registers. | |
void | HAL_RCC_GetClockConfig (RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency) |
Configure the RCC_ClkInitStruct according to the internal RCC configuration registers. | |
void | HAL_RCC_EnableCSS (void) |
Enable the Clock Security System. | |
void | HAL_RCC_NMI_IRQHandler (void) |
Handle the RCC Clock Security System interrupt request. | |
__weak void | HAL_RCC_CSSCallback (void) |
RCC Clock Security System interrupt callback. |
Detailed Description
RCC HAL module driver. This file provides firmware functions to manage the following functionalities of the Reset and Clock Control (RCC) peripheral: + Initialization and de-initialization functions + Peripheral Control functions.
- Version:
- V1.1.0
- Date:
- 16-September-2015
============================================================================== ##### RCC specific features ##### ============================================================================== [..] After reset the device is running from Multiple Speed Internal oscillator (4 MHz) with Flash 0 wait state. Flash prefetch buffer, D-Cache and I-Cache are disabled, and all peripherals are off except internal SRAM, Flash and JTAG. (+) There is no prescaler on High speed (AHBs) and Low speed (APBs) busses: all peripherals mapped on these busses are running at MSI speed. (+) The clock for all peripherals is switched off, except the SRAM and FLASH. (+) All GPIOs are in analog mode, except the JTAG pins which are assigned to be used for debug purpose. [..] Once the device started from reset, the user application has to: (+) Configure the clock source to be used to drive the System clock (if the application needs higher frequency/performance) (+) Configure the System clock frequency and Flash settings (+) Configure the AHB and APB busses prescalers (+) Enable the clock for the peripheral(s) to be used (+) Configure the clock source(s) for peripherals which clocks are not derived from the System clock (SAIx, RTC, ADC, USB OTG FS/SDMMC1/RNG)
- Attention:
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Definition in file stm32l4xx_hal_rcc.c.
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